Machine for operating on and moistening parts of shoes.



Patented Jan. 21, 1919.

W. H. HOOPER. MACHINE FOB OPERATING ON AND MOISTENING PARTS OF SHOES.

. APPLICATION HLED APR. 20. 1914. I 1,291,888.

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UNITED STATE WILLIAM H. HOOPER, 0F LYNN, MASSACHUSETTS, ASSIGNOR, BY

Y ATENT OFFICE.

MESNE ASSIGNMENTS,

TO UNITED SHOE MACHINERY CORPORATION, OF PATERSON, NEW JERSEY, A COR-PORATION or NEW JERSEY.

I VIACHINE FOR OPERATING ON AND MOISTENIN PARTS OF SHOES.

Specification of Letters Patent.

Patented Jan. 21, 1919.

Application filed April 20, 1914. Serial N 0. 833,123.

To all whom it may concern:

Be it known that I, WILLIAM H. H oo1 En, a citizen of the United States,residing at Lynn, in the countyof Essex and State of Massachusetts, haveinvented certaln new and useful Improvements in Machines for Operatingon and Moistening Parts of Shoes; and I do hereby declare the followingto be a full, clear, and exact description of the invention, such aswill enable others skilled in the art to which it appertalns to make anduse the same.

This invention relates to machines for operatin on the parts of shoesand more particular y to devices for molstenlng the leather before it isacted upon by the operating tool of the machine.

The invention is designed particularly to be applied to machines forindenting the leather to form imitation stitches and to machines forindenting the intervals between the stitches of a finished seam toseparate the stitches. The invention is not, however, limited in itsapplication to such machines, but certain features thereof may beembodied with advantage in other machines for operating upon the partsof shoes either before or after they are assembled upon a last.

The primary object of the invention is to provide machines for operat ngupon the parts of shoes with a moistening device for discharging amoistenlng l1qu1d upon the leather to temper the same, n which thedischarge of the moistening l1qu1d 1s conveniently controlled withoutattent1on on the part of the operator so that the liquid s dischargedupon the work wh1le thework is operated upon by the tool and thedischarge thereof is cut ofi when the work is removed from the machine.

Another object of the invention is to provide machines of this classwith a moistening device by which the required amount of the moisteningliquid may be discharged upon a certain desired portion of the workwithout wetting other portions thereof.

With these objects in view the invent10n comprises certain novel andimproved constructions, arrangements and combinat ons of partshereinafter described and particularly pointed out in the claims, theadvantages of which Wlll be obvlous to those skilled in the art.

The features of the invention will be readily understood from theaccompanying drawings and the followin detailed descrip tion thereof inwhich is ifiustrated and described a machine embodying the invention inits preferred form.

he invention is illustrated in the drawings as applied to a machine forindenting the intervals between the stitches of the outseam of a lastedshoe upon the upper surface of the projecting edge ofv the shoe sole.

In the drawings; Figure 1 is a view in front elevation of the machine;Fig. 2 is a detail view showing in longitudinal section of the nozzle ofthe moistening device and the adjacent connections; Fig. 3 is asectional view taken substantially on the line 33 of Fig. 2; Fig. 4 is asectional view taken substantially on the line 1-4 of Fig. 2; and Fig. 5is a longitudinal sectional view of the nozzle of the moistening devicetaken in a plane substantially at right angles to the plane on whichFig. 2 is taken.

With the exception of the moistening device, the machine illustrated hasthe same general construction and mode of operation as the machinedisclosed in the patent to Hadaway, No. 543,012,

dated July 23, 1895. In the drawing, 2 indicates the indenting tool, 4the tool stock upon which the indenting tool is mounted, 6 the leverupon which the tool stock is pivoted by means of the stud 8 secured inthe lever, 10 the spring which acts on the lever 6 to engage theindenting tool lightly with the work, 12 the lever which actuates thelever 6 to raise the indenting tool from the work, and 14 the feed slideupon which the lever 6 is pivoted by means of the stud 16, and which isactuated to impart the locating and feeding movements to the indentingtool. All of the parts above mentioned have a construction, arrangementand mode of operation substantially the same as the corresponding partsof the machine illustrated and described in the Hadaway patent abovereferred to.

The presser lever for forcing the tool into the work is indicated at 18.This presser lever has substantially the same construction, and operatesin substantially the same manner as the presser lever illustrated anddescribed in the patent to Hadaway, No. 719.584, dated February 8rd,1903.

The work is supported during the opera- 6 tion of the upon a stud 22fixed in a verticall work support, as

charge the moistening machine by means of a lower work support 20 whichis pivotally mounted movable slide 24 mounted to slide in suita leguides in the forward portion of the machine. The lower worksupport isyieldingly supported by means of a spring 26 interposed between a lug 28on the slide, and a washer engaging the upper end of a sleeve 30threaded into a forwardly projecting lug 32 upon the frame. A rod 34having a head at its upper end asses through a suitable perforation 1nthe lug 28 and through the sleeve 30, and the work support is depressedagainst the action of the spring 26 by means of a treadle connected withthe lower end of this rod. The construction and operation of the lowerwork support, the slide upon which it is '3 mounted and the mechanismfor supporting and actuating the slide are substantially the same as inthe machine shown and described in Hadaway Patent No. 543,012, and themachine illustrated is provided with means for locking and unlocking theslide during each cycle of operations substantially the same as thatdisclosed in said patent.

The upper work support. of the machine consists of two jaws indicatedrespectively at 36 and 38 extending forwardly upon each side of theindenting tool. The jaw 36 of the upper work support is fixed and thejaw 38 is secured to the frame by means of a screw 40 passing through aslot in the block on which said jaw is formed so that it can be adjustedtoward and from the fixed jaw 36. The jaw 38 is adjusted toward and fromthe fixed jaw by means of the adjusting screws 44.

The moistening tcning liquid is discharged upon the work before the workis acted upon by the indenting tool comprises a tank 46 mounted upon astandard 48 on the head of the machine and provided with an outlet pipe50 havin a stop cock 52 therein which is operated by a thumb piece 54.The outlet pipe 50 is connected by means of a flexible pipe 56 with theupper extremity of a metal connection 58 which is threaded into atubular extension 60 on the member 38 of the upper shown particularly inFig. in the tubular extension 60 lower face 2. The bore 60* extendsdownwardly through the of the member 38,, as clearly shown in thisfigure, forming a discharge nozzle for the moistening device, the liquidbeing discharged upon the work through the lower end of .the bore.

It will be noted that the discharge nozzle of the moistening device islocated just in advance of the indenting tool so as to disliquid uponthe portion of the work to be acted upon by the tool just before it ispresented to the tool. In order to regulate the flow of the moistenmemesing liquid through the nozzle of the moisten ing device a needle valve62 is threaded into the tubular extension 60, the tapered upper end ofthe valve engaging in a contracted portion of the pipe connection 58.

The opening between the contracted portion of this pipe connection andthe tapered end i of the needle valve may be varied by adjusting thevalve in the extension 60. The enlarged lower threaded portion of theneedle valve is provided with a passage 64 for the moistening liquid asshown particularly in Fig. 3.

he moistening device is provided with a second valve which when the worksupport is lifted'by the spring 26 to bring the marginal ortion of theprojecting edge of the sole into position to be engaged by the indentingtool is opened so as to allow the moistening liquid to flow through thenozzle of the moistening device upon the work and is closed when thework support is depressed against the action' of the spring.

This valve, indicated at 66, is mounted in a suitable portion of thebore in the member 38 of the upper work support and is provided with aconical portion 68 which engages a suitably formed seat 7 O in theadjacent wall of the bore. Adjacent the conical portion 68 the valve 66is formed with a groove indicated at 72 extending entirely about thesame, and with a cross bore 74 extending diametrically through thevalve.

The cross bore 74 intersects and leads into the upper end of an axialbore 76 which at its lower end intersects a second cross bore 78 whichconnects the axial bore 76 with a second groove 80 extending about thevalve.

A groove 82 cut in the face of the bore 60 in the member 38 on the sideof said bore opposite the indenting tool forms a passage from the groove78 to the lower face of said member. When the valve member 66 is liftedthe moistening liquid flows between the conical portion 68 of the valveand the valve seat 7 0 into the groove 7 2. From this groove the liquidthen flows through the cross bore 74, the axial bore 76, the secondcross bore 78, the groove 80 and the passage 82 to the work. The groove82 is formed in the side of the bore 60 opposite the indenting tool sothat the moistening liquid will be discharged upon the work aconsiderable distance in ad- Vance of the indenting tool and will beabsorbed by the leather before it is acted upon by the tool. The valve66 is engaged by a coil spring 84 interposed between the upper end ofthe valve and the lower end of the needle valve 62 which acts tomaintain the valve normally in closed condition so that the flow of themoistening liquid to the work is out off. As will be noted from aninspection ofFigs. 2 and 5, the lower end of the valve 66 forms aplunger which extends below the lower surface of the member 38 of theupper work support so that when the work is engaged with this projectinglower end of the valve the valve is o ened.

The operation of the moistening device above described is as follows:When the operator is about to introduce the shoe in operative positionhe depresses the lower work support by means of the treadle connectedwith the rod 34: and then places the shoe upon the work support so thatthe projecting edge of the sole lies beneath the indenting tool. Thetreadle is then released and the lower work support is lifted by theaction of the spring 26, bringing the uppersurface of the projectingedge of the sole into engagement with the upper work support. During theupward movement of the lower work support the upper face of theprojecting edge of the sole engages the roecting lower end of the valve66 and ifts the valve, thereby allowing the moistening liquid to flowthrough the passage 82 on the work in advance of the indenting tool.During each cycle of operations of the machine the valve 66 is openduring the locating movements of the indenting tool and when theindenting tool is forced down into the work. Just before the work isfed, however, the work support is unlocked and is then depressedslightly against'the action of the spring 26 by the pressure of theindenting tool. The depression of the Work support at this time issuflicient to remove the upper surface of the projecting edge of thesole from contact with the lower end of the valve 66 so that the valveis closed while the work is being fed. When the indenting operation iscompleted the operator depresses the treadle to enable the work to beremoved, thereby lowering the shoe and removing the projecting edge ofthe sole from contact with the lower end of the valve 66, and the valveis then closed by the action of the spring 84. The moistening liquidwhich is discharged upon the leather before it is acted upon by theindenting tool serves to temper the same and enables the tool to indentthe work more easily and results in render ing the indentation made inthe leather more permanent. The valves which control the flow of themoistening liquid upon the work are constructed so that just therequired amount of liquid will be discharged without wetting the upperof the shoe or any of the liquid flowing down over the edge of the sole.One or two drops of liquid discharged upon the work for each stitch isusually sufficient to suit the requirements for satisfactory work.Water, alcohol, or any other suitable moistening liquid may be used inthis machine. If desired, moistening liquid may be heated before it isdischarged upon the work by the flame from a gas jet 86 arrangedadjacent the extension so that the flame plays on said extension. Themachine has the decided advantages that allparts of' Having explainedthe nature and object of the invention and having specifically describeda machine embodying the features thereof in their preferred forms, whatis claimed is 1. A machine for operating upon the parts of shoes, havingin combination, a de vice for operating on the work and a device forsupporting the work while being operated on, one of which is movable tolocate the work and the operating device in relative operatingpositions, a; moistening device having a nozzle arranged to discharge amoistenm liquid on the work, and a valve operated y the movement of themovable device for controlling the discharge of the moistening liquidthrough the nozzle.

2. A machine for operating on the parts of shoes, having in combination,an operating tool and a support for holding the work while it isoperated on by the tool arranged for relative movement to .place thework and the tool in relative operating positions, a moistening devicehaving a nozzle arranged to discharge a moistening liquid on the work,and a valve operated by the relative movement of the work support andthe tool for controlling the discharge of the moistening liquid throughthe nozzle.

A machine for operating on the parts of shoes, having in combination,work supporting devices arranged to engage opposite sides of the workand mounted for relative movement toward and from each other, amoistening device having a nozzle arranged to discharge a moisteningliquid on the work, and a valve operated by the relative movement of thework supporting devices for controlling the discharge of liquid throughthe nozzle.

4. A machine for operating on the parts of shoes, having in combinatlon,an indenting tool and a support for holding the work while it isoperated on by the tool arranged for relative movement to place the workand the tool in relative operating positions, a moistening device havinga nozzle arranged to discharge a moistening liquid on the work, and avalve operated by the relative movement of the work support and the toolto place the tool and the work in relative operating positions forcontrolling the discharge of the moistening liquid through the nozzle.

5. A machine for operating on the parts of shoes, having in combination,an indenting tool and a support for holding the work a naereae while itis operated on by the tool arranged of shoes, having, in combination, awork for movement relative. to the indenting tool support and aresser-foot relatively movto place the work in operatin position withable toward and from each other, a moisten relation to the tool, meansor raising and ing device having a nozzle arranged to d1s- 5 loweringthe work support, a moistening charge a moistening liquid upon the work,device having a nozzle arranged to discharge and a valve forcontrolling'the discharge of a moistening liquid upon the work, and athe moistening liquid through the nozzle, valve arranged to be opened bythe upward arranged to be opened by the relative movemovement of thework support and to be ment of the work supportand resser-foot 1o closedwhen the worksupport is depressed. toward each other and to be closedupon the 6. A machine for operating on the parts relative movement ofthe work support and of shoes, having, in combination, anindentpresser-foot away from each other. ing tool, means for actuatingthe tool to 10. A machine foroperating upon the find the intervalsbetween the stitches of a parts of shoes, having, in combination, a

seam and to indent the intervals to separate vwork support and apresser-foot relatively stitches, 'a moistening device having anozmovable toward and from each other, a zle arranged to discharge amoistening liquid moistening device having a nozzle for dison the work,a valve for controlling the discharging a moistening liquid upon thework, charge of the moistening liquid thr gh the and valve mechanism forcontrolling the nozzle, and means for opening the valve discharge of themoistening liquid through during the locating and indentin movethenozzle comprising a movable device ments of the tool and for closing t evalve mounted on the presser-foot and arranged while the work is fed. tobe engaged by the work and to be actu- 7. A machine for operating on theparts ated to open the Valve during the relative of shoes, having incombination an indent movement of the work support and pressering tool,means for actuating the tool to in foot toward each'other. dent theintervals between the stitches of a 11. A machine for operating upon theseam, a moistening device having a nozzle parts of shoes, having, incombination, work arranged to discharge a moistening liquid engagingdevices arranged to engage oppoon the work, a valve for controlling thedissite sides of the work and mounted for relacharge of the moisteningliquid through the tive movement toward and from each other, nozzle, andmeans for opening and closing a moistening device having a nozzle arthevalve during each cycle of operations. ranged to discharge a moisteningliquid on 8. A machine for operating on the parts the work, and valvemechanism for control of shoes having, in combmation, a moistenling thedischarge of the moistening liquid ing device for discharging amoistening liqthrough the nozzle, comprising a device aruid upon thestock arranged to permit a ranged to engage the work and to be operpartof a shoe to be presented thereto, means ated to open the valve by therelative movefor controlling the discharge of the inoistenment of thework-engaging devices toward 40 ing lifquid tlirougl;1 thednozzlle, and1mechsieach other. nism or app ying eat irect y to t e nozz e I e to heatthe same so that the moistening liq- WILLIAM B" uid will be dischargedfrom the nozzle at a Witnesms: relatively high temperature. CHESTER E.Rooms,

as 9'. A machine for operating upon the parts LAURA M. Goonnrnen.

